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The impedances of each phase of an overhead line differs from each other due different relative geometries of each ohase of the line. In order to mitigate / reduce unbalances in the system, overhead…
The currents and voltage in the sheath / metallic screen (MSC) depend on the bonding configuration. There are different bonding configurations for cables: Double bonding: MSC is grounded on both sides…
In the attached example a test grid is used to shown an example configuration for a FFT (Fast Fourier Transformation) element. The example includes two standalone composite models running in parallel,…
For lightning transient studies, the line insulators are represented by voltage-dependent switches. There are different options to model the flashover during lightning transients, such as: Voltage…
The attached PowerFactory project contains a transmission system with prepared measurement devices ready to run a State Estimation (ComSe). The special thing in transmission system is that there are…
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An UPFC (Unified Power Flow Controller) is a FACTS (Flexible AC Transmission System) device, which consists of two VSCs (Voltage-Sourced Converters). The VSCs are interconnected with each other on…
Several things are generally worth to keep in mind when executing an EMT simulation with PowerFactory: 1. Necessity of accurate representations of line models. PowerFactory offers lumped as well as…
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Open the Project Settings (Edit->Project Data->Project Settings in the Main Menu) and switch to the Input-page. Here it is possible to change the units system from Metric to English-Industry (ft) or…
The attached example project shows three different possibilities to implement automatic voltage regulators (AVR), installed along a line. The most left arrangement uses an auto transformer, where the…
In the attached PowerFactory project, part of a railway transmission network is modelled based on BI-phase technology. The simple network model contains three 110 kV overhead line sections which are…
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